Motor attachment for centrifugal pumps



(No Model.) 2 Sheets-Sheet 1* B. W. SCOTT.

MOTOR ATTAGHMENT FOR GENTRIFUGAL PUMPS.

No. 356,264. Patented Jan. '18, 1887.

WITNESSES 'INVENTOB.

we Him/" g ATTORNEYS.

N. PETERS. Phum-Lnhugmpher. Washinglan. D C.

2 Sheets-Sheet 2..

(No Model.)

B. W. SCOTT,

MOTOR ATTAGHMENT FOR OENTRIFUGA'L PUMPS.

No. 356,264. Patented Jan. 18, 1887.

. INVENTOR WITNESSES I ATTORNEYS.

' Unis STATES PATEN Fries.

BARTON W. SCOTT, OF LOGANSPORT, INDIANA.

MOTOR ATTACHMENT'FOR' CENTRIFUGAL PUMPS.

SPECIFICATION forming part of Letters Patent No. 356,264, dated January18, 1887,

Application filed June 29, 1886. Serial No. 206,613. No model.)

To aZZ whom it may concern-.-

Be it known that I, BARTON W. 'Scorr, of Logansport, in the county ofCass and State of Indiana, have invented a new and Improved MotorAttachment for Centrifugal Pumps, of which the following is aspecification, reference. being had to the annexed drawings, forming apart thereof, in which- Figure 1 is a vertical transverse sectionshowing a centrifugal pump with my improved motor attachment applied.Fig. 2 is a detail sectional view of a centrifugal-pump wheel and thepower-wheel, showing their relation to each other. Fig. 3 is a detailview showing the arrangement of the wheels and belts for transferringmotion from the motorwheel to the pump-wheel; and Fig. 4 is a de-. tailperspective view of one of the floats or buckets of the motor-Wheel.

Similar letters of reference indicate corresponding parts in thedifferent figures of the drawings.

In centrifugal pumps as ordinarily constructed the water, after beingraised by the pump, is discharged with great velocity from the peripheryof the wheel, and the force of the water so discharged is usuallywasted.

The object of my invention is to utilize the power of the water issuingfrom the periphery of the centrifugal-pump wheel for assisting in thepropulsion of the pump.

My invention consists in the construction and arrangement of parts, aswill be hereinafter fully described and claimed.

The centrifugal-pump wheel A is mounted in the casing B on the shaft 0,extending transversely through the casing and into the suction-pipe D.The suction-pipe D communicates with the center of the centrifugal wheelA, and is provided with an air-valve, a, through which a small quantityof air is introduced into the casing B along with the water.

Upon a sleeve, E, surroundingthe shaft 0, and extending through the wallof the casing B, a disk, F, is secured within the casing and in closeproximity to the side of the centrifugal wheel A. The disk F carries anumber of buckets, G, which project over the periphery of thecentrifugal wheel A. Each float or bucket is provided with a series ofchambers, b, as shown in Fig. 4, to insure the more effective action ofthe water on the buckets.

Upon thesleeve E, outside of the casing 13, is mounted a pulley, H, andabove the shaft 0 is supported a counter-shaft, I, carrying a smallpulley, J, which receives motion through a belt, K, from the pulley H.The countershaft I carries a large pulley, L, which drives the pulley Mon the shaft 0 through themedium of the belt N.

The shaft 0 is provided with a driving-pulley, O, by which thecentrifugal wheel A is set and continued in motion. When power isapplied to the pulley O and water is discharged from the ends of thehollow arms of the centrifugal wheel A, it impinges on the buckets G andcauses the wheel F to rotate, and the rotary motion of the wheel F istransferred to the shaft 0 through the mechanism already described, sothat the force of the water issuing from the extremities of the arms ofthe centrifugal wheel A is utilized in assisting to drive thepump-wheelf In starting the pump a small amount of air is allowed toenter the air-valve a along with the water, so that the ler el of thewater in the casing B is reduced to the line 0 below the motor-wheel,thus permitting the wheel to revolve in the casing without bringing itsbuckets into contact with the water at the bottom of the casing. Afterthe pump is in motion the valve a is closed, as sufficient air willenter with the water to prevent the rise of the water above the line 0in the casing. WVater discharged from the pump and wheel escapes fromthe casing through the lateral opening P at the bottom thereof.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

The combination, with the casing B, having the outlet P in its bottom,the inlet-pipeD, through which the water is drawn, and a bearing in theopposite side of the casing, of the horizontal shaft 0, a centrifugalwheel, A, fixed to said shaft and having a side opening communicatingwith the pipe .D, the disk F, having a sleeve, E, mounted inthebearlarge pulley L, and the belt N, connecting it ing opposite pipe D,the shaft 0, passing with the small pulley M, substantially as set 10through said sleeve and provided with the forth.

pulleys M and O, the buckets G, projecting 5 from the outer edge of thedisk across the pe- BARTON SCOTT riphery of the centrifugal Wheel, thelarge Witnesses: pulley H on the sleeve E, the shaft I, having BENJ. F.LOUTHAIN,

the small pulley J driven from pulley H, the GEO. C. TABER.

